Experimental Physics and
Industrial Control System

Andrew Johnson <[email protected]> · Mon, 26 Apr 2010 13:14:36 -0500

Hi Mark,

On Monday 26 April 2010 11:59:30 Mark Rivers wrote:
>
> No, I just learned about that in a message from Janet this morning.  It
> is not mentioned in the EPICS release notes or in the
> README/Installation file that describes the supported architectures. I
> had not looked in the configure/os directory.

I'm guessing that it might not have been ready for operational use or fully 
tested at the time of the R3.14.11 release, hence Janet didn't document it 
then.

> I'm a little confused over the correct name for this new architecture.
> The file is called
>
> /configure/os/CONFIG.windows-x64.windows-x64
>
> That makes it sound like the architecture is windows-x64.  But in that
> file it uses a different syntax in the comments, win-x86_64.  What do I
> set EPICS_HOST_ARCH to?

Janet has changed those names in the comments now, the proper architecture 
name is windows-x64.  There's some background on the naming of the x86-64 
processor architecture at http://en.wikipedia.org/wiki/X86-64 which mentions 
that this was AMD's original name for it, but they now use AMD64 and Intel 
call their version INTEL64.  It's becoming common to call it X64.

Janet's commit since the R3.14.11 release can be seen at 
http://bazaar.launchpad.net/~epics-core/epics-base/3.14/revision/12006 and 
does seem to have some significant changes in it, in addition to allowing for 
cross-compilation by a 32-bit machine.

HTH,

- Andrew
-- 
The best FOSS code is written to be read by other humans -- Harald Welte

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System